WO2010032837A1 - 胴体縦横幅測定ユニットおよび内臓脂肪測定装置 - Google Patents
胴体縦横幅測定ユニットおよび内臓脂肪測定装置 Download PDFInfo
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- WO2010032837A1 WO2010032837A1 PCT/JP2009/066409 JP2009066409W WO2010032837A1 WO 2010032837 A1 WO2010032837 A1 WO 2010032837A1 JP 2009066409 W JP2009066409 W JP 2009066409W WO 2010032837 A1 WO2010032837 A1 WO 2010032837A1
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- A61B5/00—Measuring for diagnostic purposes; Identification of persons
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Definitions
- the present invention relates to a trunk longitudinal width measuring unit and a visceral fat measuring apparatus provided with the same.
- bioimpedance is measured using an electrode brought into contact with the user's torso etc., and the circumference, length, width, etc. of the torso are measured as physique information.
- Patent Document 1 a plurality of electrodes for measuring bioimpedance are arranged, and an electrode support portion that can be pressed against the front of the abdomen of the trunk while bending according to the shape of the trunk in order to bring the electrodes into close contact with the trunk surface And a pair of arms that measure the lateral width of the torso by making contact with both sides of the abdomen, and a body fat measuring device that calculates an index related to body fat from the bioimpedance and width of the torso has been proposed Yes.
- the body is sandwiched from the front and rear by a support portion having a support surface on which a plurality of electrodes are arranged and a pressing portion having a pressing surface facing the support surface, and detection is performed using the plurality of electrodes.
- a body impedance type body composition meter that estimates an index relating to body fat from the body bioimpedance of the body to be measured and the longitudinal width of the body measured based on the stop position of the pressing surface.
- the pressing portion that closely contacts the electrode also serves as a measurement unit for physique information, and information measured as the user's physique information is only either the horizontal width or the vertical width of the trunk. Therefore, there is a problem that the accuracy of information is not reliable. That is, the human torso is a part whose shape is likely to change due to breathing motion, and the abdominal cross section changes so that the vertical width expands and the horizontal width decreases during inhalation, and the vertical width decreases and the horizontal width increases during expiration. Therefore, the measurement value differs depending on whether the timing of measuring the horizontal width or vertical width of the trunk is inspiration and expiration, resulting in variations in the calculation of an index relating to body fat.
- the torso dimension information can be acquired by reflecting the breathing state.
- An object of the present invention is to provide a trunk width measuring unit and a visceral fat measuring device capable of improving the reliability of measurement accuracy.
- the present invention employs the following means in order to solve the above problems.
- the fuselage length and width measuring unit of the present invention is A first contact portion that contacts an upper surface of the body of a user in a supine position; A second contact portion that contacts one side of the fuselage; A third contact portion that contacts the other side of the fuselage; The body vertical and horizontal widths for calculating the vertical width and the horizontal width of the fuselage from the height from the thin surface of the user to the contact position of the first contact portion and the distance between the second contact portion and the third contact portion And a calculating unit.
- the vertical width and the horizontal width of the trunk can be measured at the same breathing timing, so that it is possible to measure the vertical and horizontal width of the trunk reflecting the state of breathing (during inspiration or expiration).
- the first contact portion is attached to be movable in the vertical direction, and the second contact portion and the third contact portion are attached to be movable in the horizontal direction, and the second contact portion or the third contact portion is attached by the user. It is good to have the unit main body positioned in the position which contacts the side surface of a fuselage
- the vertical and horizontal widths of the trunk can be measured by changing the position of each contact portion with respect to the unit main body according to the size of the width of the trunk of the user.
- a first detection unit for detecting a descending distance until the first contact unit comes into contact with the upper surface of the fuselage from the origin position above the user's fuselage;
- a second detection unit for detecting a movement distance from the origin position in the horizontal direction of the second contact unit;
- a third detection unit for detecting a movement distance from the origin position in the horizontal direction of the third contact unit,
- the fuselage length and width calculation unit is Based on the descending distance of the first contact part detected by the first detection part, the height from the surface where the user is thin to the contact position of the first contact part is calculated, Based on the movement distance of the second contact part detected by the second detection part and the movement distance of the third contact part detected by the third detection part, the second contact part and the third contact part It is good to calculate the distance between them.
- the vertical and horizontal widths of the trunk can be easily measured by detecting the displacement distance from the origin until each contact portion comes into contact with the trunk surface.
- first contact portion, the second contact portion, and the third contact portion are movable so as to follow a change in a trunk shape when the user breathes.
- each contact portion is located at the origin position can be used as a determination factor whether or not each contact portion is in contact with the body.
- an excessive push sensor for detecting whether or not the second contact portion or the third contact portion is located at the movable limit position.
- first contact portion is made of a transparent or translucent member.
- the contact state between the contact portion and the body surface can be easily visually confirmed. Therefore, it is easy to confirm whether or not the contact position of the contact portion is correct, or whether the contact portion is pressed too much against the body, and the vertical and horizontal widths of the body can be appropriately measured.
- the trunk vertical / horizontal width calculation unit calculates the maximum value, minimum value, and average value during breathing of the vertical and horizontal widths of the trunk from the movement distances of the first contact unit, the second contact unit, and the third contact unit. Any of them may be measured values of the vertical and horizontal widths of the body.
- the visceral fat measuring device includes: It has the fuselage vertical and horizontal width measurement unit, The body cross-sectional area of the cross section that passes through the abdomen and is perpendicular to the body axis of the fuselage among the fuselage calculated from the vertical and horizontal widths of the fuselage obtained using the fuselage vertical and horizontal width measurement unit, Impedance information of the entire torso obtained by passing a current through the torso from the limbs and measuring the potential difference of a part of the torso surface, Impedance information of the fuselage surface layer part obtained by passing a current through the surface of the fuselage and measuring the potential difference of a part of the fuselage surface, Based on the above, the visceral fat amount is calculated.
- the visceral fat mass can be measured from the trunk cross-sectional area, the impedance information of the entire trunk, and the impedance information of the trunk surface layer.
- the trunk cross-sectional area can be calculated based on the vertical and horizontal widths of the trunk.
- impedance information can be easily obtained because impedance information is obtained by measuring a potential difference in a state where current is passed through a human body (living body). Therefore, the visceral fat amount can be measured relatively easily and non-invasively.
- the “visceral fat mass” in the present invention includes an index indicating the visceral fat mass, such as the visceral fat cross-sectional area, the visceral fat volume and the ratio of the visceral fat cross-sectional area to the abdominal cross-sectional area.
- the fuselage vertical and horizontal width measuring unit for measuring the vertical and horizontal widths of the user's trunk is provided. Therefore, since the visceral fat mass is calculated using the two measured values of the user's torso length and width as the user's physique information, the influence of the shape change of the torso due to breathing is reduced, and the measurement accuracy is improved. Can do.
- the pressing unit that closely contacts the electrode also serves as a measurement unit for physique information, and the body may be deformed depending on the pressing force and weight of the pressing unit,
- the accuracy of information is not reliable.
- the variation may appear as a variation in the contact resistance between the electrode and the body surface, which may reduce the measurement accuracy. It is necessary to press against the fuselage stably with a load of.
- the body is deformed by pressing the pressing part. In this case, the measurement value of the body shape also varies.
- the electrode for measuring impedance information and the fuselage vertical and horizontal width measurement unit for measuring the vertical and horizontal width of the fuselage are separated, each contact portion to be brought into contact with the fuselage As in the prior art, it is not necessary to press the electrode against the surface of the fuselage so that the electrode is in close contact with the surface of the fuselage. Therefore, it is possible to suppress deformation of the body due to contact with the contact portion for measuring the vertical and horizontal widths of the body, and it is possible to suppress the occurrence of variations in the calculated values of the body shape.
- the reliability of measurement accuracy can be improved.
- FIG. 1 is a schematic diagram showing a state when impedance is measured.
- FIG. 2 is a schematic diagram showing a state when impedance is measured.
- FIG. 3 is an overall configuration diagram of the visceral fat measuring device according to the embodiment of the present invention.
- FIG. 4 is a control block diagram of the visceral fat measuring apparatus according to the embodiment of the present invention.
- FIG. 5 is a schematic cross-sectional view of a fuselage longitudinal width measuring unit according to an embodiment of the present invention.
- FIG. 6 is a schematic cross-sectional view of a fuselage longitudinal width measuring unit according to an embodiment of the present invention.
- FIG. 7 is a functional block diagram of the fuselage longitudinal width measuring unit according to the embodiment of the present invention.
- FIG. 8 is a flowchart showing the flow of operation and operation processing of the trunk vertical and horizontal width measuring unit according to the embodiment of the present invention.
- FIG.1 and FIG.2 are schematic views showing a state when impedance is measured.
- FIG.1 and FIG.2 the mode seen from the back side of the user who measures visceral fat is shown.
- Fig. 1 shows the situation when obtaining impedance information of the entire fuselage.
- electrodes EILa10 and EIRa10 are attached to both hands of a user who measures visceral fat, respectively.
- Electrodes EILb10 and EIRb10 are attached to both feet of the user, respectively.
- a pair of electrodes provided at positions on the back side of the user's torso so as to be aligned in the body axis direction of the torso are attached at four locations in the width direction of the torso. That is, a total of eight electrodes EVa11, EVb11, EVa12, EVb12, EVa13, EVb13, EVa14, EVb14 are attached.
- a current I10 passing through the trunk is passed using the electrodes EILa10, EIRa10, EILb10, and EIRb10 attached to both hands and feet.
- the potential difference V11 is measured using the pair of electrodes EVa11 and EVb11
- the potential difference V12 is measured using the pair of electrodes EVa12 and EVb12
- the potential difference V13 is measured using the pair of electrodes EVa13 and EVb13
- the potential difference V14 is measured using EVa14 and EVb14. That is, the potential difference of part of the body surface is measured at four locations on the back side.
- the impedance Zt of the entire fuselage is calculated from the potential difference thus measured.
- the impedance Zt of the entire fuselage is calculated from the potential difference thus measured.
- the impedance Zt of the entire torso calculated from the potential differences V11, V12, V13, and V14 measured using the current I10 is greatly affected by the amount of lean (external organs, muscles, and skeleton) excluding fat. . Therefore, the lean body sectional area Sa (estimated value) can be calculated from the impedance Zt.
- FIG. 2 shows a state in which impedance information of the body layer on the back side of the body is obtained.
- a pair of electrodes provided on the back side of the user's torso so as to be aligned in the body axis direction of the torso are attached at four locations in the width direction of the torso. That is, a total of eight electrodes EIa21, EIb21, EVa21, EVb21, EIa22, EIb22, EVa22, EVb22 are attached.
- the current I21 is supplied using the pair of electrodes EIa21 and EIb21
- the current I22 is supplied using the pair of electrodes EIa22 and EIb22.
- the current value of the current I21 and the current value of the current I22 are the same.
- the potential difference V21 is measured using the pair of electrodes EVa21 and EVb21
- the potential difference V22 is measured using the pair of electrodes EVa22 and EVb22. That is, the potential difference of a part of the body surface is measured at two locations on the back side.
- the impedance Zs of the body surface layer on the back side of the body is calculated.
- the potential difference V21 and V22 is measured at four locations by switching the circuit so that the electrode through which the current is flowing is the electrode for measuring the potential difference and the electrode for which the potential difference is being measured is the electrode for flowing the current. It is also possible. By doing so, it is possible to further reduce the influence of variations in subcutaneous fat and the like.
- the impedance Zs of the body surface layer portion calculated from the potential differences V21 and V22 measured using the currents I21 and I22 is greatly influenced by the subcutaneous fat mass. Therefore, the subcutaneous fat cross-sectional area Sb (estimated value) can be calculated from the impedance Zs.
- the visceral fat cross-sectional area Sx St-Sa-Sb
- the torso sectional area St can be calculated from the circumference of the waist (waist length) and the length and width of the torso (near the abdomen). For example, when calculating from the vertical and horizontal width of the fuselage, if the horizontal width of the fuselage is 2a and the vertical width is 2b, the cross-sectional area of the fuselage is approximately ⁇ ⁇ a ⁇ b because the cross-section of the fuselage is approximately elliptical. However, since this value has a large error, a more accurate body cross-sectional area St can be obtained by multiplying by a coefficient for correcting the error.
- St ′ ⁇ ⁇ ⁇ ⁇ a ⁇ b is obtained from the relationship between the trunk cross-sectional area St ′ obtained from the X-ray CT image and a and b.
- An optimum value of ⁇ that satisfies the requirement can be obtained.
- ⁇ to be multiplied for the above correction an optimum value may be appropriately changed depending on gender, age group, height, weight, etc. (hereinafter referred to as user information). By changing the value of, it becomes possible to calculate a more accurate fuselage cross-sectional area St.
- the lean body sectional area Sa can be calculated from the impedance Zt of the entire trunk.
- a is half the width of the fuselage as described above, and is a value related to the size of the fuselage.
- this value not limited to this, for example, (a ⁇ b) may be used so that the vertical and horizontal width values of the trunk are reflected, the trunk cross-sectional area St may be used, and the circumference of the waist You may use long (waist length).
- the subcutaneous fat cross-sectional area Sb can be calculated from the impedance Zs of the body surface layer at the position on the back side of the abdomen of the back.
- a is half the width of the fuselage as described above, and is a value related to the size of the fuselage.
- this value not limited to this, for example, (a ⁇ b) may be used so that the vertical and horizontal width values of the trunk are reflected, the trunk cross-sectional area St may be used, and the circumference of the waist You may use long (waist length).
- ⁇ and ⁇ may have different optimum values depending on the user information, as in the case of ⁇ used for obtaining the cross-sectional area of the abdomen. Therefore, by changing the values of ⁇ and ⁇ according to the user to be measured, it is possible to calculate a more accurate lean body sectional area Sa and subcutaneous fat sectional area Sb.
- the visceral fat measuring device based on the torso sectional area St, the lean body sectional area Sa calculated based on the impedance Zt of the entire torso, and the impedance Zs of the torso surface layer part.
- the visceral fat cross-sectional area Sx is calculated from the calculated subcutaneous fat cross-sectional area Sb.
- St ⁇ ⁇ ⁇ ⁇ a ⁇ b
- Sa ⁇ ⁇ a ⁇ (1 / Zt)
- Sb ⁇ ⁇ a ⁇ Zs.
- A is half the width of the body
- b is half the length of the body.
- ⁇ , ⁇ , and ⁇ are coefficients for obtaining the optimum values of St, Sa, and Sb obtained based on a large number of X-ray CT image samples. These coefficients can be changed according to user information as described above.
- the amount of visceral fat measured (calculated) is the visceral fat cross-sectional area.
- the visceral fat amount as a measurement result is not limited to the visceral fat cross-sectional area, but may be a ratio of the visceral fat cross-sectional area to the trunk cross-sectional area or a visceral fat volume converted from the visceral fat cross-sectional area.
- the visceral fat cross-sectional area Sx is calculated from the trunk cross-sectional area St to the lean body cross-sectional area Sa and the subcutaneous fat section. This is based on the idea that it can be obtained by reducing the area Sb.
- Sx St ⁇ Sa ⁇ Sb + ⁇ ( ⁇ is a correction amount) From this, the visceral fat cross-sectional area Sx can also be obtained.
- the correction amount ⁇ can be added based on a large number of X-ray CT image samples by the same method as when ⁇ , ⁇ , and ⁇ are obtained.
- Sx St-F (Zt, Zs, a, b) From this, the visceral fat cross-sectional area Sx can also be obtained.
- F (Zt, Zs, a, b) is a function having Zt, Zs, a, b as parameters.
- the total value of the lean body sectional area Sa and the subcutaneous fat sectional area Sb correlates with the impedance Zt of the entire body, the impedance Zs of the body surface layer portion, and the body size (in this embodiment, the longitudinal and lateral widths of the body). is there. Accordingly, the total value of the lean body sectional area Sa and the subcutaneous fat sectional area Sb can be obtained from a function F (Zt, Zs, a, b) having t, Zs, a, b as parameters. Note that this function F (Zt, Zs, a, b) can also be derived from a large number of X-ray CT image samples.
- FIG. 3 is an overall configuration diagram of the visceral fat measuring device according to the embodiment of the present invention.
- the visceral fat measuring apparatus includes an apparatus main body 100, four clips 201, 202, 203, and 204 for attaching electrodes to the limbs, a belt 300 for attaching electrodes to the back, and the vertical and horizontal directions of the torso.
- a measurement unit 400 for measuring the width and an outlet 500 for supplying power to the apparatus main body 100 are provided.
- the apparatus main body 100 includes a display unit 110 for displaying various input information and measurement results, and an operation unit 120 for turning on / off the apparatus main body 100 and inputting various information.
- Clips 201, 202, 203, and 204 each have an electrode. And by attaching these clips 201, 202, 203, 204 so as to be sandwiched between limbs (preferably wrist and ankle), the electrodes can be brought into close contact with the limb.
- the electrodes provided in the clips 201, 202, 203, and 204 correspond to the electrodes EILa10, EIRa10, EILb10, and EIRb10 shown in FIG.
- the belt 300 includes a pressing member 310 that presses against the back of a user who is a measurement target, a belt portion 320 that is fixed to each side of the pressing member 310, and a buckle 330 that fixes the belt portion 320. ing.
- the pressing member 310 is provided with a total of eight electrodes E.
- the belt 300 thus configured is wrapped around the waist so that the pressing member 310 is slightly above the tailbone, so that the eight electrodes E are placed on the back side of the abdomen of the user's back. It can be adhered.
- These eight electrodes E include the eight electrodes EVa11, EVB11, EVa12, EVb12, EVa13, EVb13, EVa14, EVb14 shown in FIG.
- the eight electrodes E1a21, E1b21, EVa21 It corresponds to EVb21, EIa22, EIb22, EVa22, EVb22. That is, the role of the eight electrodes E can be changed by switching the electric circuit in the apparatus main body 100 between the case of calculating the impedance Zt of the entire body and the case of calculating the impedance Zs of the body surface layer portion. .
- the torso length and width measuring unit 400 includes a plurality of contact portions, and by contacting each contact portion with the torso, the user can lie on the bed and measure the torso width 2a and the length 2b. It is configured to be able to. The detailed configuration will be described later.
- the apparatus main body 100 is configured such that the lateral width 2a and the longitudinal width 2b of the body are obtained as electrical information (data) based on the position information of each contact portion.
- the fact that the cross-sectional area of the trunk is calculated from the information on the lateral width 2a and the longitudinal width 2b of the trunk thus obtained is as described in the visceral fat measurement principle.
- the visceral fat measuring device is provided with a trunk vertical and horizontal width measuring unit 400, and the trunk vertical and horizontal width measuring unit 400 automatically measures the vertical and horizontal widths of the trunk and the cross-sectional area of the trunk. It is configured. However, it is also possible to adopt a configuration in which a value obtained by measurement or calculation by another measuring device or by a human hand is input to the device main body 100.
- FIG. 4 is a control block diagram of the visceral fat measuring apparatus according to the embodiment of the present invention.
- the device main body 100B includes a control unit (CPU) 130B, a display unit 110B, an operation unit 120B, a power supply unit 140B, a memory unit 150B, and a potential difference detection unit 160B.
- a circuit switching unit 170B, a constant current generation unit 180B, and a user information input unit 190B are provided.
- the display unit 110B plays a role of displaying input information from the operation unit 120B and the user information input unit 190B, measurement results, and the like, and includes a liquid crystal display or the like.
- the operation unit 120B plays a role for allowing a user or the like to input various types of information, and includes various buttons and a touch panel.
- the user information is input from a barcode reader, a card reader, or a USB memory via the user information input unit 190B. Has been.
- the power supply unit 140B plays a role of supplying power to the control unit 10 and the like.
- the power source is turned on by the operation unit 120B, power is supplied to each unit, and when the power source is turned off, power is supplied. Stop.
- the memory unit 150B stores various data and programs for measuring visceral fat.
- the electrode E provided on each of the clips 201, 202, 203, and 204 and the electrode E provided on the belt are electrically connected to a circuit switching unit 170B provided on the apparatus main body 100B.
- a physique information measurement unit 400B provided in the measurement unit 400 is electrically connected to a control unit 130B provided in the apparatus main body 100B.
- the control unit 130B plays a role of controlling the entire visceral fat measurement device. Further, the control unit 130B includes an arithmetic processing unit 131B.
- the arithmetic processing unit 131B includes an impedance calculation unit 131Ba that calculates impedance based on various information sent to the control unit 130B, and various fat amounts that calculate various fat amounts based on the calculated impedance. And a calculation unit 131Bb.
- the circuit switching unit 170B includes, for example, a plurality of relay circuits.
- the circuit switching unit 170B plays a role of changing the electric circuit based on a command from the control unit 130B. That is, as described above, when obtaining impedance information of the entire body, the circuit configuration shown in FIG. 1 is used, and when obtaining impedance information of the body layer on the back side, the circuit configuration shown in FIG. 2 is used. Change the electrical circuit.
- the constant current generator 180B supplies a high-frequency current (for example, 50 kHz, 500 ⁇ A) based on a command from the controller 130B. More specifically, in the case of the electric circuit shown in FIG. 1, a current I10 is passed between the electrodes EILa10 and EIRa10 and the electrodes EILb10 and EIRb10. In the case of the electric circuit shown in FIG. 2, currents I21 and I22 are passed between the electrode EIa21 and the electrode EIb21 and between the electrode EIa22 and the electrode EIb22, respectively.
- a high-frequency current for example, 50 kHz, 500 ⁇ A
- the potential difference detection unit 160B detects a potential difference between predetermined electrodes while a current is passed by the constant current generation unit 180B. More specifically, in the case of the electric circuit shown in FIG. 1, the potential difference V11 is detected between the electrodes EVa11 and EVb11, the potential difference V12 is detected between the electrodes EVa12 and EVb12, and the electrodes EVa13 and A potential difference V13 is detected between the electrode EVb13 and a potential difference V14 is detected between the electrode EVa14 and the electrode EVb14. In the case of the electric circuit shown in FIG. 2, the potential difference V21 is detected between the electrode EVa21 and the electrode EVb21, and the potential difference V22 is detected between the electrode EVa22 and the electrode EVb22.
- the potential difference information detected by the potential difference detection unit 160B is sent to the control unit 130B.
- the physique information obtained by the measurement unit 400 is sent from the physique information measurement unit 400B to the control unit 130B of the apparatus main body 100B.
- the physique information in a present Example is the information regarding the dimension of the horizontal width 2a of the trunk
- the impedance calculation unit 131Ba calculates the impedance Zt of the entire trunk and the impedance Zs of the trunk surface layer based on the potential difference information sent from the potential difference detection unit 160B.
- the arithmetic processing unit 131B the calculated overall body impedance Zt and body surface layer impedance Zs, the physique information sent from the physique information measurement unit 400B, and the operation unit 120B and the user information input unit 190B are sent.
- various fat amounts (including the visceral fat cross-sectional area) are calculated by various fat amount calculation units 131Bb.
- a user who performs visceral fat measurement or a person who performs measurement of the user turns on the power of the apparatus main body 100 (100B) and inputs user information.
- the measurement unit 400 measures the vertical and horizontal widths of the user's torso.
- the information regarding the horizontal width 2a and the vertical width 2b of the user's trunk is sent to the apparatus main body 100 (100B).
- ⁇ is read from the memory unit 150B.
- the clips 201, 202, 203, and 204 are attached to the user's limbs, and the belt 300 is wound around the user's waist. Then, measurement of impedance is started.
- the circuit switching unit 170B controls the electric circuit shown in FIG.
- the impedance Zt of the entire trunk is calculated by the impedance calculation unit 131Ba of the control unit 130B.
- X (1 / Zt)) is calculated.
- the circuit switching unit 170B controls the electric circuit shown in FIG.
- the impedance Zs of the body surface layer is calculated by the impedance calculator 131Ba of the controller 130B.
- Sx St-Sa-Sb
- Sx St-F
- the physique information measuring unit 400B includes a torso length and width measuring unit 400 capable of measuring the length and width of the user's torso.
- FIG. 5 is a schematic cross-sectional view of the torso length / width measurement unit 400 showing a state before the contact portion is brought into contact with the user's torso.
- FIG. 6 is a schematic cross-sectional view of the torso length / width measurement unit 400, showing a state in which the contact portion is in contact with the user's torso.
- the torso length / width measurement unit 400 is generally provided so as to be positioned at a predetermined position on the bed 6 on which the user 5 in the supine position is placed and to be movable with respect to the unit body 40.
- the 1st contact part 41, the 2nd contact part 42, and the 3rd contact part 43 are provided.
- the unit main body 40 includes rotary encoders 441, 442, and 443 for detecting the moving distance of each contact portion, and micro switches 451, 452, and 453 for detecting whether or not each contact portion is located at the origin position.
- an electronic circuit (not shown) in which a calculation unit for calculating the vertical and horizontal widths of the fuselage is formed, a switch (not shown) for starting measurement of the vertical and horizontal widths of the fuselage, and the like are provided.
- the first contact portion 41 is assembled so as to be vertically movable with respect to the unit main body 40, and comes into contact with the upper surface (front surface of the abdomen) of the body 5 of the user 5 in the supine position so as to increase the vertical width (thickness) of the body of the user 5. It is for measuring.
- the first contact portion 41 is configured by a plate-like member that is partially or entirely made of a transparent or translucent material and extends in a substantially horizontal direction so that the body does not deform when it contacts the body of the user 5. It has a light weight design.
- a slide portion 41 a is provided at the base of the first contact portion 41.
- the slide part 41a is assembled so as to be slidable in the vertical direction with respect to the rail part 401 provided in the unit main body 40 and extending in the vertical direction.
- the first contact portion 41 can be moved up and down in the vertical direction with respect to the unit main body 40.
- the first contact portion 41 is provided so that the highest position of the rail portion 401 is the origin position, and the first contact portion 41 is lowered to the lowest point of the rail portion 401 by its own weight when there is no support. Accordingly, the first contact portion 41 can move in the vertical direction while being supported on the upper surface of the body after contacting the upper surface of the body.
- the 1st contact part 41 can follow the change of the trunk
- the unit main body 40 is provided with a locking portion 46 for locking the first contact portion 41 at the highest position of the rail portion 401.
- the locking portion 46 is configured to be pulled and rotated by the wire 46 a when the inclination of the lever 46 b connected via the wire 46 a is switched to release the locking state of the first contact portion 41.
- the configuration of the locking means is not limited to this, and other locking mechanisms may be used.
- a wire 441a extending from a rotary encoder 441 as a first detection unit is attached to the slide unit 41a of the first contact unit 41.
- the rotary encoder 441 detects the length of the wire 441a that is pulled out by the lowering of the first contact portion 41, whereby the lowering distance of the first contact portion 41 can be detected. Since a conventional technique may be appropriately used as a rotary encoder, a detailed description of the configuration and the like is omitted. Further, the means for detecting the movement distance is not limited to the rotary encoder, and another apparatus capable of detecting the movement distance may be used.
- the micro switch 451 serving as an origin position sensor is configured such that when the first contact portion 41 is located at the origin position, that is, the highest position of the rail portion 401, the movable contact is pushed by the slide portion 41a and contacts the fixed contact.
- the movable contact and the fixed contact of the micro switch 451 are connected and turned on, it can be detected that the first contact portion 41 is at the origin position. Since the conventional technology may be appropriately used as the microswitch, detailed description of the configuration and the like is omitted.
- the means for detecting the position of the contact portion is not limited to the microswitch as described above, and any other device capable of detecting the position may be used regardless of contact type or non-contact type.
- the second contact portion 42 and the third contact plate portion 43 are provided so as to face each other in the horizontal direction.
- the second contact portion 42 and the third contact plate portion 43 are in contact with the side surface (flank) of the body so as to sandwich the body of the user 5 in the supine position. It is for measuring the width of the fuselage.
- the second contact portion 42 and the third contact plate portion 43 are assembled so as to be movable in the horizontal direction with respect to the unit main body 40 so that the opposing distance can be changed.
- the second contact portion 42 is made of a plate-like member that is partially or entirely made of a transparent or translucent material and extends in a substantially vertical direction.
- the second contact portion 42 is provided with a slide portion 42a having a shape protruding in the horizontal direction.
- the unit main body 40 is provided with a guide portion 402 through which the slide portion 42a can be inserted.
- the slide portion 42a is inserted into the guide portion 402 and slid in the horizontal direction with respect to the guide portion 402, whereby the second portion.
- the contact portion 42 is configured to move in the horizontal direction with respect to the unit main body 40.
- the weight of the second contact portion 42, the sliding resistance between the slide portion 42a and the guide portion 402, and the like prevent the body from being deformed when the second contact portion 42 contacts the body of the user 5.
- the reaction force received from the second contact portion 42 is set to be sufficiently small.
- the second contact portion 42 is biased in a direction opposite to the third contact portion 43 (the body of the user 5) by a biasing means (not shown) such as a spring, and the shape of the body due to a breathing operation or the like is changed. It is configured to follow.
- the urging means is configured such that the urging force applied to the second contact portion 42 is sufficiently small so as not to cause deformation of the user's body. When nothing comes into contact with the second contact portion 42, the second contact portion 42 returns to the original position by the urging means.
- a wire 442a extending from a rotary encoder 442 serving as a second detection unit is attached to the slide unit 42a of the second contact unit 42. Therefore, the moving distance of the second contact portion 42 can be detected by the rotary encoder 442 detecting the pull-out length of the wire 442a that changes as the second contact portion 42 moves.
- the micro switch 452 as the origin position sensor is arranged so that the movable contact is pushed by the slide portion 42a and contacts the fixed contact when the second contact portion 42 is located at the origin position.
- the origin position of the second contact part 42 is a position where the second contact part 42 is fully extended, that is, one limit position of the movable range of the second contact part 42, and the third contact part 43. And the position where the distance between is the narrowest.
- the micro switch 452 is configured such that the contact state between the movable contact and the fixed contact is released when the second contact portion 42 is pushed in from the origin position. Therefore, the micro switch 452 is turned on only when the second contact portion 42 is located at the origin position.
- the position where the second contact portion 42 contacts the body of the user 5 during the body width measurement is determined by the position where the unit body 40 is installed on the bed 6. Therefore, the position where the unit main body 40 is positioned is determined so that the contact position of the second contact portion 42 with the body is a position where the second contact portion 42 is pushed to some extent from the origin position. If the contact position between the second contact part 42 and the trunk at the time of measurement is the origin position where the second contact part 42 first touches the side of the trunk of the user 5, depending on the breathing state at that time, In some cases, the contact state between the second contact portion 42 and the body of the user 5 is not maintained due to the change in respiration.
- the installation position of the unit main body 40 is determined such that the second contact portion 42 is in the contact position with the side surface of the body regardless of the breathing state, and the position where the second contact portion 42 is pushed to some extent is the measurement position.
- the micro switch 454 has a movable contact pressed against the second contact portion 42 when the second contact portion 42 is located at the movable limit position.
- the unit main body 40 is provided so as to be in the ON state.
- the micro switch 452 for detecting the origin position is provided in one of the two sets of the slide part 42a and the guide part 402, and the micro switch 454 for detecting excessive pressing is provided in the other set.
- the configuration may be such that a microphone switch for the origin position and a micro switch for detecting excessive pressing are provided in any of the groups.
- the third contact portion 43 is partially or entirely made of a transparent or translucent material and extends in the horizontal direction from the upper portion of the plate-like portion 43a to the upper part of the user 5 in the horizontal direction. And a slide portion 43b having a shape. A caster 43c is provided at the lower end of the plate-like portion 43a. The slide portion 43b is assembled so as to be slidable in the horizontal direction with respect to a rail portion 403 provided in the unit main body 40 and extending in a substantially horizontal direction.
- the same biasing means as described above provided for the second contact portion 42 may also be provided for the third contact portion 43.
- a wire 443a extending from a rotary encoder 443 serving as a third detection unit is attached to the slide unit 43b of the third contact unit 43. Therefore, the moving distance of the third contact portion 43 can be detected by the rotary encoder 443 detecting the pull-out length of the wire 443a that changes as the third contact portion 43 moves.
- the micro switch 453 as an origin position sensor is arranged so that the movable contact is pushed by the slide portion 43b and contacts the fixed contact when the third contact portion 43 is located at the origin position.
- the origin position of the third contact portion 43 is a position where the third contact portion 43 is most contracted with respect to the unit body 40, that is, one limit position of the movable range of the third contact portion 43.
- the distance between the two contact portions 42 is the narrowest position.
- the body vertical and horizontal width measurement unit 4 can be easily held on the upper portions of the unit main body 40 and the third contact portion 43 to improve workability such as installation on the bed 6 and alignment of the third contact portion 43.
- Grasping portions 40b and 43d are provided.
- the lever 46 b is provided on the grip portion 40 b of the unit main body 40. Note that the shape of the gripping portions 40b and 43d, the arrangement of the lever 46b, and the like are not limited thereto.
- a plate portion 40a that increases the ground contact area with the bed 6 is provided in order to prevent the unit main body 40 from falling over.
- FIG. 7 is a functional block diagram of the torso length / width measurement unit of the visceral fat measurement device according to the embodiment of the present invention.
- the torso length / width measurement unit 400 (physique information measurement unit 400B) mainly includes a control unit 4a including a torso length / width calculation unit 4b, a measurement switch 4c, a length detection encoder 441, Horizontal width detection encoders 442 and 443, origin position sensors 451, 452 and 453, and an excessive push sensor 454 are provided.
- the vertical width detecting encoder 441 detects the descending distance from the origin position of the first contact portion 41 and outputs it to the control portion 4a.
- the width detection encoders 442 and 443 detect the movement distance from the origin position of the second contact portion 42 and the movement distance from the origin position of the third contact portion 43 and output them to the control portion 4a.
- the origin position sensors 451, 452, and 453 indicate whether or not the first contact portion 41, the second contact portion 42, and the third contact portion 43 are located at the origin positions, that is, the origin position sensors 451, 452, and 453, respectively. Is output to the control unit 4a as to whether the microswitch that constitutes is ON or OFF.
- the over-press sensor 454 controls whether or not the second contact portion 42 is located at the movable limit position, that is, whether the microswitch that constitutes the over-press sensor 454 is in an ON state or an OFF state. To the unit 4a.
- Control part 4a for example, is composed of a CPU (Central Processor Unit), and is provided with a fuselage length / width calculation part 4b.
- the fuselage vertical / horizontal width calculation unit 4b receives the measured values of the moving distances of the respective contact portions input from the vertical width detection encoder 441, the horizontal width detection encoders 442 and 443, the origin position sensors 451, 452, and 453, and the excessive push sensor 454. Based on the input ON / OFF signal, the vertical width and horizontal width of the user's torso are calculated.
- the calculation of the length and width of the body by the body length and width calculation unit 4b of the control unit 4a is performed after receiving a calculation start command issued from the measurement switch 4c.
- the control unit 4a outputs the vertical and horizontal width of the trunk calculated by the trunk vertical and horizontal calculation unit 4b to the control unit 130B of the visceral fat measuring device as physique information.
- FIG. 8 is a flowchart showing the flow of the operation and operation process of the trunk width measuring unit of the visceral fat measuring device according to the embodiment of the present invention.
- the processing shown in the flowchart of FIG. 8 is stored in advance as a program in the memory unit 150B of the visceral fat measuring device or the memory unit (not shown) of the torso length / width measuring unit 4, and the control unit 4a reads out and executes this program.
- the function of the trunk vertical and horizontal width measurement process is realized.
- control unit 4a determines whether or not all of the first contact unit 41, the second contact unit 42, and the third contact unit 43 are set to the origin positions, that is, each origin position sensor. It is determined whether or not all of the micro switches 451, 452, and 453 are in the ON state (step S101). The control unit 4a waits until all contact parts are set at the origin position (NO in step S101).
- the trunk vertical / horizontal width measurement unit 400 is installed on the bed 6 on which the user 5 in the supine position is placed. Specifically, the third contact portion 43 is extended from the unit body 40 in the horizontal direction so that the second contact portion 42 and the third contact portion 43 are arranged on both sides of the abdomen, so that the navel position of the body of the user 5 is increased. It is installed so as to straddle (step S102). At this time, the control unit 4a starts measuring the width of the body from the movement distance of the second contact portion 42 and the third contact portion 43 detected by the rotary encoders 442 and 443 for detecting the width.
- the control unit 4a determines whether or not the second contact unit 42 and the third contact unit 43 are in contact with the side surfaces of the trunk (step S103). In the present embodiment, both the second contact portion 42 and the third contact portion 43 are moved from the origin position, and both the micro switch 452 and the micro switch 453 that are the origin position sensors are in the OFF state. Whether or not the second contact portion 42 and the third contact portion 43 are in contact with the side surface of the trunk is determined. The control unit 4a waits until both the micro switch 452 and the micro switch 453 are turned off (NO in step S103).
- the first contact portion 41 is locked by the locking portion 46 by pulling the lever 46b.
- the state is released, and the first contact portion 41 is lowered from the origin position (step S104).
- the control unit 4a starts measuring the vertical width of the body from the descending distance of the first contact portion 41 detected by the rotary encoder 441 for detecting the vertical width.
- step S105 When the micro switch 451 that is the origin position sensor of the first contact portion 41 is turned off and the lowering of the first contact portion 41 is confirmed (YES in step S105), next, the contact position of the first contact portion 41 is changed. Confirmation is performed. That is, it is confirmed whether or not the first contact portion 41 is in contact with the navel position of the body from the transparent or translucent portion of the first contact portion 41. When the contact position is shifted, the installation position of the unit 4 is corrected and the first contact portion 41 is adjusted to the navel position of the trunk.
- control unit 4a determines whether or not the micro switch 454 that is an over-pressing sensor is in an OFF state, that is, whether or not the second contact unit 42 is not pressed too much against the side surface of the trunk ( Step S107).
- the control unit 4a waits until the micro switch 454 is in the OFF state (NO in Step S107).
- step S107 When the micro switch 454 is in the OFF state (YES in step S107) and the measurement start command is issued by pressing the measurement switch 4c, the control unit 4a controls the body of the user 5 based on the measurement value.
- the vertical and horizontal widths are determined (step S108).
- the vertical and horizontal widths of the torso calculated and determined in this way are output to the control unit 130B as physique information when measuring the visceral fat mass, as described above.
- the length and width of the torso can be measured at the same breathing timing, so that the torso length and width reflecting the state of breathing (during inspiration or expiration) can be measured.
- the width can be measured.
- the visceral fat mass is calculated using two measured values of the vertical and horizontal widths of the user's torso as the user's physique information. Therefore, the influence of the shape change of the trunk due to respiration is reduced, and the measurement accuracy can be improved.
- each contact portion to be brought into contact with the body does not need to be pressed against the surface of the body so that the electrode is brought into close contact with the surface of the body as in the prior art, and may be in a state of being in contact with the surface of the body.
- drum contact can be suppressed, and generation
- drum can be suppressed.
- each contact part is configured to be able to follow changes in the body shape during the user's breathing, so it is possible to more accurately measure the length and breadth of the body reflecting the state of breathing. Can be improved.
- the trunk width measuring unit is used in the visceral fat measuring device.
- the apparatus using the trunk width measuring unit according to the present embodiment is not limited to this. Needless to say, the present invention can be applied to various measuring apparatuses that use the vertical and horizontal widths of the body as physique information.
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Abstract
Description
仰臥位のユーザの胴体の上面に接触する第1接触部と、
胴体の一方の側面に接触する第2接触部と、
胴体の他方の側面に接触する第3接触部と、
ユーザが臥せている面から前記第1接触部の接触位置までの高さおよび前記第2接触部と前記第3接触部との間の距離から、胴体の縦幅および横幅を算出する胴体縦横幅算出部と、を備えることを特徴とする。
前記第2接触部の水平方向における原点位置からの移動距離を検出する第2検出部と、
前記第3接触部の水平方向における原点位置からの移動距離を検出する第3検出部と、をさらに備え、
前記胴体縦横幅算出部が、
前記第1検出部が検出する前記第1接触部の下降距離に基づいて、ユーザが臥せている面から前記第1接触部の接触位置までの高さを算出し、
前記第2検出部が検出する前記第2接触部の移動距離及び前記第3検出部が検出する前記第3接触部の移動距離に基づいて、前記第2接触部と前記第3接触部との間の距離を算出するとよい。
上記の胴体縦横幅測定ユニットを備えており、
前記胴体縦横幅測定ユニットを用いて得られる胴体の縦横幅から算出される胴体のうち腹部を通り胴体の体軸に垂直な断面の胴体断面積と、
手足から胴体を通るように電流を流し、胴体表面の一部の電位差を測定することで得られた胴体全体のインピーダンス情報と、
胴体の表層付近を通るように電流を流し、胴体表面の一部の電位差を測定することで得られた胴体表層部のインピーダンス情報と、
に基づいて、内臓脂肪量を算出することを特徴とする。
図1~図8を参照して、本発明の実施例に係る内臓脂肪測定装置について説明する。
図1及び図2を参照して、本発明の実施例に係る内臓脂肪測定装置における内臓脂肪の測定原理について説明する。図1及び図2はインピーダンスを測定する際の様子を示した模式図である。なお、図1及び図2においては、内臓脂肪を測定するユーザの背中側から見た様子を示している。
Sx=St-Sa-Sb
となり、内臓脂肪断面積Sxを算出することができる。
Sa=β×a×(1/Zt)
で表すことができる。
Sb=γ×a×Zs
で表すことができる。
Sx=St-Sa-Sb
で表される。
Sx=St-Sa-Sb+δ(δは補正量)
から内臓脂肪断面積Sxを求めることもできる。つまり、上記のα,β,γを求めた場合と同様の手法によって、多数のX線CT画像サンプルに基づいて、補正量δを加えるようにすることもできる。
Sx=St-F(Zt,Zs,a,b)
から内臓脂肪断面積Sxを求めることもできる。なお、F(Zt,Zs,a,b)は、Zt,Zs,a,bをパラメータとする関数である。
図3を参照して、本実施例に係る内臓脂肪測定装置の全体構成について説明する。図3は本発明の実施例に係る内臓脂肪測定装置の全体構成図である。
図4を参照して、本実施例に係る内臓脂肪測定装置の制御構成について説明する。図4は本発明の実施例に係る内臓脂肪測定装置の制御ブロック図である。
図5~図8を参照して、胴体縦横幅測定ユニットについて、さらに詳細に説明する。
次に、図8を参照して、胴体縦横幅測定ユニットによってユーザの胴体の縦横幅を測定する際の動作について説明する。
110、110B 表示部
120、120B 操作部
130B 制御部
131B 演算処理部
131Ba インピーダンス算出部
131Bb 各種脂肪量算出部
140B 電源部
150B メモリ部
160B 電位差検出部
170B 回路切替部
180B 定電流生成部
190B ユーザ情報入力部
201、202、203、204 クリップ
300 ベルト
310 押し当て部材
321 ベルト部
322 バックル
400 胴体縦横幅測定ユニット
400B 体格情報計測部
40 ユニット本体
41 第1接触部
42 第2接触部
43 第3接触部
441、442、443 ロータリエンコーダ
451、452、453 マイクロスイッチ
500 コンセント
E 電極
Claims (10)
- 仰臥位のユーザの胴体の上面に接触する第1接触部と、
胴体の一方の側面に接触する第2接触部と、
胴体の他方の側面に接触する第3接触部と、
ユーザが臥せている面から前記第1接触部の接触位置までの高さおよび前記第2接触部と前記第3接触部との間の距離から、胴体の縦幅および横幅を算出する胴体縦横幅算出部と、
を備えることを特徴とする胴体縦横幅測定ユニット。 - 前記第1接触部が垂直方向に移動可能に取り付けられるとともに前記第2接触部および前記第3接触部が水平方向に移動可能に取り付けられ、前記第2接触部または前記第3接触部がユーザの胴体の側面に接触する位置に位置決めされるユニット本体を有することを特徴とする請求項1に記載の胴体縦横幅測定ユニット。
- 前記第1接触部がユーザの胴体上方の原点位置から胴体上面に接触するまでの下降距離を検出する第1検出部と、
前記第2接触部の水平方向における原点位置からの移動距離を検出する第2検出部と、
前記第3接触部の水平方向における原点位置からの移動距離を検出する第3検出部と、をさらに備え、
前記胴体縦横幅算出部が、
前記第1検出部が検出する前記第1接触部の下降距離に基づいて、ユーザが臥せている面から前記第1接触部の接触位置までの高さを算出し、
前記第2検出部が検出する前記第2接触部の移動距離及び前記第3検出部が検出する前記第3接触部の移動距離に基づいて、前記第2接触部と前記第3接触部との間の距離を算出することを特徴とする請求項2に記載の胴体縦横幅測定ユニット。 - 前記第1接触部、前記第2接触部および/または前記第3接触部が、ユーザの呼吸時の胴体形状の変化に追随するように移動可能であることを特徴とする請求項3に記載の胴体縦横幅測定ユニット。
- 前記第1接触部、前記第2接触部および/または前記第3接触部が原点位置に位置しているか否かを検知するための原点位置センサを有することを特徴とする請求項3に記載の胴体縦横幅測定ユニット。
- 前記第2接触部または前記第3接触部が可動限界位置に位置しているか否かを検知するための押し過ぎセンサを有することを特徴とする請求項2に記載の胴体縦横幅測定ユニット。
- 前記第1接触部、前記第2接触部および/または前記第3接触部がユーザの胴体から受ける反力を検知する圧力センサを有することを特徴とする請求項1に記載の胴体縦横幅測定ユニット。
- 前記第1接触部、前記第2接触部および/または前記第3接触部の一部または全部が、透明または半透明な部材で構成されることを特徴とする請求項1に記載の胴体縦横幅測定ユニット。
- 前記胴体縦横幅算出部が、前記第1接触部、前記第2接触部および前記第3接触部の移動距離から、胴体の縦幅および横幅の呼吸時の最大値、最小値、平均値を算出し、それらのうちのいずれかを胴体の縦幅及び横幅の測定値とすることを特徴とする請求項2に記載の胴体縦横幅測定ユニット。
- 請求項1~9のいずれか1項に記載の胴体縦横幅測定ユニットを備えており、
前記胴体縦横幅測定ユニットを用いて得られる胴体の縦横幅から算出される胴体のうち腹部を通り胴体の体軸に垂直な断面の胴体断面積と、
手足から胴体を通るように電流を流し、胴体表面の一部の電位差を測定することで得られた胴体全体のインピーダンス情報と、
胴体の表層付近を通るように電流を流し、胴体表面の一部の電位差を測定することで得られた胴体表層部のインピーダンス情報と、
に基づいて、内臓脂肪量を算出することを特徴とする内臓脂肪測定装置。
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DE112009001812.2T DE112009001812B4 (de) | 2008-09-22 | 2009-09-18 | Rumpfbreitenmesseinheit und Eingeweidefettmessvorrichtung |
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JP5903863B2 (ja) * | 2011-12-13 | 2016-04-13 | オムロンヘルスケア株式会社 | 体組成測定装置 |
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CN114081472A (zh) * | 2021-11-15 | 2022-02-25 | 中南大学湘雅二医院 | 一种用于腹型肥胖评估的便捷式体表横径测量仪 |
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JP5287078B2 (ja) | 2013-09-11 |
DE112009001812B4 (de) | 2021-11-18 |
KR20110063628A (ko) | 2011-06-13 |
US8355778B2 (en) | 2013-01-15 |
KR101591549B1 (ko) | 2016-02-03 |
JP2010069248A (ja) | 2010-04-02 |
DE112009001812T5 (de) | 2011-07-28 |
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CN102118996B (zh) | 2013-06-05 |
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